http://coinia.net/groestlcoin/getbalance.php?api=help
http://whatmine.com/coin/399/GroestlCoin-GRS-Groestl-Profitability
http://www.coinwarz.com/cryptocurrency/coins/groestlcoin
http://www.cryptocoinrank.com/Groestlcoin
http://coinmarketcap.com/
https://cointweak.com/calculator/index/grs
http://www.coingecko.com/coins/groestlcoin
http://crypto-prices.com/GRS
http://worldcoinindex.com/coin/Groestlcoin
http://targetmoon.com/
http://www.cryptocoincharts.info/v2/coins/show/grs
http://www.cryptocoinsnews.com/bitcoin-winners-losers
http://www.cryptocoincomparison.com/index.php/individual-coin-pages/356-groestlcoin
http://bitinfocharts.com/groestl/
http://crypto-coins-table.com/coins/GRS/GroestlCoin.html
http://www.cryptocoinsinfo.com/scrypt-coins/groestlcoin/groestlcoin-grs/
https://cryptrader.com/charts/mintpal/grs/btc
http://www.whattomine.com/coins/48-grs-groestl
http://en.bitmakler.com/GroestlCoin___mining
http://vardiff.com/coin/groestlcoin/
http://www.coinyoo.com/
http://www.coingorilla.com/servicedetails.aspx?sid=1810
http://www.cryptovein.com/coins/GRS